Ink Jet Ink Composition, Recording Method, And Recording Device

Abstract

An ink jet ink composition includes a pigment; an acetylene glycol-based surfactant having an HLB value of 5 or less; a lactam compound having a 6- to 8-membered lactam ring; a solvent component; and a water-soluble resin dissolved in the solvent component, in which the content of the water-soluble resin is 0.3% by mass or more based on the total mass of the ink jet ink composition, the solvent component includes water, and the ink jet ink composition is an aqueous ink.

What is claimed is: 
     
         1 . An ink jet ink composition comprising:
 a pigment;   an acetylene glycol-based surfactant having an HLB value of 5 or less;   a lactam compound having a 6- to 8-membered lactam ring;   a solvent component; and   a water-soluble resin dissolved in the solvent component, wherein   a content of the water-soluble resin is 0.3% by mass or more based on a total mass of the ink jet ink composition,   the solvent component includes water, and   the ink jet ink composition is an aqueous ink.   
     
     
         2 . The ink jet ink composition according to  claim 1 , wherein
 the ink jet ink composition is ejected by an ink jet recording device when used, and   an ink tank to which the ink jet ink composition is supplied in the ink jet recording device or an ink housing body that supplies the ink jet ink composition to the ink jet recording device has a structure in which an ink liquid surface that is a gas-liquid interface between the ink jet ink composition and gas is formed.   
     
     
         3 . The ink jet ink composition according to  claim 2 , wherein
 a maximum area of the ink liquid surface is 500 mm 2  or more.   
     
     
         4 . The ink jet ink composition according to  claim 1 , wherein
 a mass ratio (A/B) of a content A of the acetylene glycol-based surfactant to a content B of the lactam compound in the ink jet ink composition is 0.01 or more and 0.7 or less.   
     
     
         5 . The ink jet ink composition according to  claim 1 , wherein
 the water-soluble resin includes a urethane-based resin.   
     
     
         6 . The ink jet ink composition according to  claim 1 , wherein
 a content of resin particles is less than 0.1% by mass based on a total amount of the ink jet ink composition.   
     
     
         7 . The ink jet ink composition according to  claim 1 , wherein
 a content of inorganic oxide particles is less than 0.1% by mass based on a total amount of the ink jet ink composition.   
     
     
         8 . The ink jet ink composition according to  claim 1 , wherein
 the pigment includes a self-dispersing pigment.   
     
     
         9 . The ink jet ink composition according to  claim 1 , wherein
 the lactam compound includes ε-caprolactam.   
     
     
         10 . The ink jet ink composition according to  claim 1 , wherein
 the solvent component includes an alkanediol compound having 5 or more carbon atoms as a water-soluble organic solvent.   
     
     
         11 . The ink jet ink composition according to  claim 1 , wherein
 the solvent component includes a polyol having a standard boiling point of 280° C. or higher as a water-soluble organic solvent.   
     
     
         12 . The ink jet ink composition according to  claim 1 , wherein
 the ink jet ink composition is used for recording on an absorptive recording medium.   
     
     
         13 . An ink jet recording method comprising:
 ejecting the ink jet ink composition according to  claim 1  from an ink jet head to deposit the ink jet ink composition on a recording medium.   
     
     
         14 . The ink jet recording method according to  claim 13 , wherein
 the ink jet head is a line head.   
     
     
         15 . An ink jet recording device comprising:
 the ink jet ink composition according to  claim 1 ; and   an ink jet head configured to eject the ink jet ink composition.